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Loyale (TBI)

  1. With ignition off, disconnect TPS connector. Using an ohmmeter, measure resistance between terminals "B" and "D". See Fig 1 . Record reading. Measure resistance between terminals "B" and "C" with throttle fully closed, then measure with throttle fully open. Record readings.
  2. Ensure readings are as specified. See 4-CYLINDER THROTTLE POSITION SENSOR RESISTANCE  table. If necessary, loosen attaching screws and rotate TPS until correct resistance is obtained. Replace TPS if resistance cannot be adjusted to specification.
Fig 1: Identifying TPS Connector Terminals (Loyale)
G90G16622Courtesy of SUBARU OF AMERICA, INC.
4-CYLINDER THROTTLE POSITION SENSOR RESISTANCE

Terminal No. Ohms
Legacy
No. 2 & 3 12,000
No. 2 & 4
Throttle Fully Closed 10,000-12,000
Throttle Fully Open 3000-5000
Loyale (PFI)
No. 1 & 3 6000-18,000
No. 1 & 2
Throttle Fully Closed 5800-17,800
Throttle Fully Open 1500-5100
Loyale (TBI)
"B" & "D" 3500-6500
"B" & "C"
Throttle Fully Closed Less Than 1000
Throttle Fully Open Greater Than 2400